A quick trip back to year 10 science, with plenty of back of the envelope doodles:
A 1hr flight in a 340 is ~500kg of A1, which has a specific/chemical energy of 46.36Mj/kg.
Telsa Model S cars with the leading edge 100kW battery has about 360MJ of energy.
Multiplying 46.35 x 500 gives a total energy requirement of 23,180MJ required for our 1 hour flight.
Given the worlds best transportable batteries currently hold about 360MJ, we will need a lazy 65 Model S batteries.
each one of them weighs roughly 540kg, so that will just require us to carry 35T of batteries.
Google says the MTOW of a SAAB is 13T.
Old Sharpie is having a decent old yank. And to suggest Hydrogen will be fuelling aircraft anytime soon is even more nuts. Why not just chuck in mini nuclear fusion for the trifecta!
*I may or may not have failed high school science - and I’m certainly not against new greener energy - i just know the limitations of my electric car’s battery